第3题: [单项选择]下列命令中,是Java编译命令的是 A. javac B. java C. javadoc D. appletviewer 参考答案:A 答案解析:[解析] 本题考查java中JDK工具。javac是Java编译命令,能将源代码编译成字节码,以class扩展名存入java工作目录中。java是Java解释器,执行字节码程序,该程序是类名所指的类,
A. It had important minerals in it. B. They wanted to make national parks them. C. They needed more land for new immigrants. D. They wanted the wood. 参考答案:C
第5题: [单项选择]碱度分为酚酞碱度和()两种 A. 甲基橙碱度 B. 全碱度 C. 小碱度 参考答案:B